Date:5/11/2009

chitin. When the findings were applied in a statistical analysis of data from soil nitrogen fractionation, the ISNT was estimated to recover 95% of the nitrogen in bacterial amino sugars and 43% of amide-nitrogen. The incubation studies showed that labeling was more rapid for nitrogen recovered by the ISNT than in hydrolyzable amino sugars, again indicating a dominance of bacterial over fungal nitrogen recoveries by the ISNT.

Taken together, these findings suggest that the ISNT mainly detects bacterial amino sugars and implicates this form of soil nitrogen in the test's effectiveness for predicting the response of corn to nitrogen fertilization. Because the ISNT also detects some amide nitrogen, the bacterial amino sugar nitrogen signal can be obscured in soils where these components are highly variable.

'/>"/>

Contact: Sara Uttech suttech@soils.org 608-268-4948 Soil Science Society of America Source:Eurekalert

0 GOOD

Page: 1 2
Related biology news :

1. Human aspects of climate change to be focus of conference at Illinois
2. NSF funds research at Illinois on sustainable biofuels infrastructure
3. NSF funds new Center for the Physics of Living Cells at Illinois
4. 2 University of Illinois researchers named HHMI investigators
5. Tree species composition influences nitrogen loss from forests
6. Researchers call for nitrogen and phosphorus reductions to combat eutrophication in aquatic systems
7. Cropland diversity reduces nitrogen pollution
8. Lichens function as indicators of nitrogen pollution in forests
9. Nitrogen applied
10. A little nitrogen can go a long way
11. EPA releases science assessment on health effects of nitrogen oxides